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SashulF [63]
3 years ago
11

A bag has 9 blue marbles, 7 red marbles, 4 green marbles

Mathematics
2 answers:
scoundrel [369]3 years ago
7 0

Answer:

7/25

Step-by-step explanation:

First we need to determine how many total marbles

9blue+7red+4green+5purple = 25 marbles

P(red) = red/total

          = 7/25

Vikentia [17]3 years ago
6 0

Answer:

\frac{7}{25}  \\

Step-by-step explanation:

total number of marbles

= 9+7+4+5 = 25

the probability of randomly

drawing a red marble from the bag

=  \frac{7}{25}  \\

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What is 8 3/5 + 4 4/5?
dangina [55]

Answer:

67/5 = 13 2/5

Step-by-step explanation:

Step 1: <u>Define/explain.</u>

An easier way to solve this is by changing the mixed fractions to improper fractions.

To do this, multiply the whole number by the denominator, then add the product to the numerator; the denominator remains the same.

Mixed fraction - a fraction with a whole number.

Improper fraction - a fraction with a numerator larger than the denominator.

Step 2: <u>Solve.</u>

8\frac{3}{5} =\frac{43}{5}

4\frac{4}{5} =\frac{24}{5}

From here, add as usual.

\frac{43}{5} +\frac{24}{5} =\frac{67}{5}

Step 3: <u>Conclude.</u>

You can change the improper fraction to a mixed fraction if you'd like.

To do this, divide the numerator by the denominator.

The amount of times the numerator evenly goes into the denominator is the whole number.

The amount of remaining numbers in the denominator.

The numerator remains the same.

\frac{67}{5} =13\frac{2}{5}

I, therefore, believe the answer to this is 13 2/5.

5 0
3 years ago
How to change 0.225 into a fraction
Aloiza [94]
I believe it’s 9/30
8 0
3 years ago
Which value must be added to the expression x^2 +16x to make it perfect-square trinomial?
Semmy [17]
X^2 + 16x + ?
a^2 + 2ab + b
(a + b)^2 which is a perfect square.

To find b to determine the last value, you divide 16x by 2x.
so:
b = 8
the last value would be 8^2 which is 64.

Hence answer is C - 64
5 0
3 years ago
Read 2 more answers
Help with #7 and #8?
arsen [322]

Answer:

M(6,5) and G(2,9)

Step-by-step explanation:

m = ( \frac{x1 + x2}{2}, \frac{y1 + y2}{2} )

B(3,6)

C(9,4)

m = [(3+9)/2 , (6+4)/2]

= (6,5)

M(5,9)

H(8,9)

G(x,y)

[(x+8)/2 , (y+9)/2]=(5,9)

(x+8)/2 = 5

x+8 = 10

x = 2

(y+9)/2 = 9

y+9 = 18

y = 9

G(2,9)

(Correct me if i am wrong)

5 0
3 years ago
Plz help I will mark you brainlist plz ​
joja [24]

Answer:

m = 12.9g

v = 8cm3

d = ?

d = m/v

d = 12.9g/8cm3

D = 1.6125g/cm3

5 0
3 years ago
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